LOMAC is one of the latest and greatest. I have it, but I haven't really been able to get excited about it yet. The learning curve is so steep that I get bored, and go back to playing Il-2 Forgotten Battles.
I doubt that any jet sim will ever displace WW-2 era sims for me. I'm really only looking forward to future WW-2 sims that are better than Forgotten Battles. And that won't be easy.
A new expansion for Forgotten Battles has just been released, with quite a few more flyable planes. I can't wait.